Supplemental Data: Rapid advancement of spring in the High Arctic

snowmelt, the snow cover in each plant and arthropod sampling plot decreased from 100 % to 0% within 2–3 weeks. Plots were visited at least once a week and we estimated the date of snowmelt in each plot as the date of 50 % snow cover by linear interpolation between the latest observation where snow...

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Main Authors: Toke T. Høye, Eric Post, Hans Meltofte, Niels M. Schmidt, Mads C. Forchhammer
Other Authors: The Pennsylvania State University CiteSeerX Archives
Format: Text
Language:English
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Online Access:http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.622.1991
http://download.cell.com/current-biology/mmcs/journals/0960-9822/piis0960982207013255.mmc1.pdf
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spelling ftciteseerx:oai:CiteSeerX.psu:10.1.1.622.1991 2023-05-15T15:08:05+02:00 Supplemental Data: Rapid advancement of spring in the High Arctic Toke T. Høye Eric Post Hans Meltofte Niels M. Schmidt Mads C. Forchhammer The Pennsylvania State University CiteSeerX Archives application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.622.1991 http://download.cell.com/current-biology/mmcs/journals/0960-9822/piis0960982207013255.mmc1.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.622.1991 http://download.cell.com/current-biology/mmcs/journals/0960-9822/piis0960982207013255.mmc1.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://download.cell.com/current-biology/mmcs/journals/0960-9822/piis0960982207013255.mmc1.pdf text ftciteseerx 2016-01-08T15:03:26Z snowmelt, the snow cover in each plant and arthropod sampling plot decreased from 100 % to 0% within 2–3 weeks. Plots were visited at least once a week and we estimated the date of snowmelt in each plot as the date of 50 % snow cover by linear interpolation between the latest observation where snow cover was above 50 % and the earliest observation where snow cover was below 50%. In some cases snowmelt occurred prior to arrival at Zackenberg. Since the spatial pattern of snowmelt is relatively consistent across years [S3] we predicted missing values from plots with similar pattern of snowmelt. Plants. The ratio of buds to open flowers was calculated from weekly counts of 200 randomly chosen flowers per plot in a total of 25 plots of six different plant species during June, July and August in each year during 1996–2005. The date when 50 % of the flower buds had opened on each plot was chosen to represent onset of flowering and was estimated by using linear interpolation between weekly estimates of the ratio of buds relative to open flowers. Estimates of onset of flowering based on less than 10 flowers were omitted from the analyses. Arthropods. We used both window (one plot) and pitfall traps (five plots) which were emptied weekly during June, July and August. All plots were operated during 1996–2005 except for one Text Arctic Zackenberg Unknown Arctic
institution Open Polar
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op_collection_id ftciteseerx
language English
description snowmelt, the snow cover in each plant and arthropod sampling plot decreased from 100 % to 0% within 2–3 weeks. Plots were visited at least once a week and we estimated the date of snowmelt in each plot as the date of 50 % snow cover by linear interpolation between the latest observation where snow cover was above 50 % and the earliest observation where snow cover was below 50%. In some cases snowmelt occurred prior to arrival at Zackenberg. Since the spatial pattern of snowmelt is relatively consistent across years [S3] we predicted missing values from plots with similar pattern of snowmelt. Plants. The ratio of buds to open flowers was calculated from weekly counts of 200 randomly chosen flowers per plot in a total of 25 plots of six different plant species during June, July and August in each year during 1996–2005. The date when 50 % of the flower buds had opened on each plot was chosen to represent onset of flowering and was estimated by using linear interpolation between weekly estimates of the ratio of buds relative to open flowers. Estimates of onset of flowering based on less than 10 flowers were omitted from the analyses. Arthropods. We used both window (one plot) and pitfall traps (five plots) which were emptied weekly during June, July and August. All plots were operated during 1996–2005 except for one
author2 The Pennsylvania State University CiteSeerX Archives
format Text
author Toke T. Høye
Eric Post
Hans Meltofte
Niels M. Schmidt
Mads C. Forchhammer
spellingShingle Toke T. Høye
Eric Post
Hans Meltofte
Niels M. Schmidt
Mads C. Forchhammer
Supplemental Data: Rapid advancement of spring in the High Arctic
author_facet Toke T. Høye
Eric Post
Hans Meltofte
Niels M. Schmidt
Mads C. Forchhammer
author_sort Toke T. Høye
title Supplemental Data: Rapid advancement of spring in the High Arctic
title_short Supplemental Data: Rapid advancement of spring in the High Arctic
title_full Supplemental Data: Rapid advancement of spring in the High Arctic
title_fullStr Supplemental Data: Rapid advancement of spring in the High Arctic
title_full_unstemmed Supplemental Data: Rapid advancement of spring in the High Arctic
title_sort supplemental data: rapid advancement of spring in the high arctic
url http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.622.1991
http://download.cell.com/current-biology/mmcs/journals/0960-9822/piis0960982207013255.mmc1.pdf
geographic Arctic
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op_source http://download.cell.com/current-biology/mmcs/journals/0960-9822/piis0960982207013255.mmc1.pdf
op_relation http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.622.1991
http://download.cell.com/current-biology/mmcs/journals/0960-9822/piis0960982207013255.mmc1.pdf
op_rights Metadata may be used without restrictions as long as the oai identifier remains attached to it.
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